I know this is a droid site sorry but this is the only forum I use for phones. So backstory, I have 2 different family lines, and on my old family line, 2 of the 3 phones are in contract but nobody uses them anymore. I just found out that they're eligible for upgrade, Which is good because my phone on my new family line arn't eligible for upgrades. I want to upgrade my old line to the iPhone then transfer the phone to my new number on my new family line. So the question is, do I have to extend my contract for another 2 years when I upgrade my old number or can I just upgrade it, transfer to my new number, then wait until my old contract is over so I don't have to pay it anymore.